Erin vs Nessa
Erin and Nessacompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.
Head to head
Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.
Northern Ireland · Girls
In 2024, Erin was ranked #25 and Nessa #337 among girls in Northern Ireland.
England and Wales · Girls
In 2024, Erin was ranked #65 and Nessa #3695 among girls in England and Wales.
Republic of Ireland · Girls
In 2025, Erin was ranked #71 and Nessa #239 among girls in Republic of Ireland.
Erin and Nessa over time
Erin and Nessa appear together in 2 published lists, across 62 years of shared records. Erin held the stronger position in more years in 2 of them, Nessa in 0.
The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.
Each reached its own highest recorded position first in 1 of the lists they share.
Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.
How this pair is related
The relationship kinds these two qualify for, each under its own stated rule. Every one is drawn from a list they both appear in.
- Mirrored each other
Over 50 shared years in Republic of Ireland · Girls, Erin rose about as far as Nessa fell — from #503 and #127 in 1975 to #71 and #239 in 2025.
- Longest-running competitions
Erin and Nessa were both ranked in Republic of Ireland · Girls for 50 years, from 1975 to 2025, ending at #71 and #239.
List by list
Republic of Ireland · Girls50 shared years, 1975–2025
Erin held the stronger position in 44 of those years, Nessa in 4.
Highest recorded here: Erin #34 in 2006, Nessa #127 in 1975.
The order changed in 1987: Erin moved ahead. In 1986 they stood at #240 and #240; by 1987 that had become #232 and #417.
Most recent shared year, 2025: Erin #71, Nessa #239.
England and Wales · Girls12 shared years, 2007–2024
Erin held the stronger position in 12 of those years, Nessa in 0.
Highest recorded here: Erin #27 in 2007, Nessa #2163 in 2020.
The order between them never changed and held in this list.
Most recent shared year, 2024: Erin #65, Nessa #3695.
Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.
Side by side
| Field | Erin | Nessa |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | female | female |
| Meaning | An Anglicized form of Éireann, the Irish name for Ireland itself. | Not yet recorded |
| Origin | Irish | Not yet recorded |
| Pronunciation | /ˈɛɹ.ɪn/ | Not yet recorded |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ | GB-ENW, GB-NIR, IE |
| Most recent popularity observation | Republic of Ireland · Girls #71 (2025) | Republic of Ireland · Girls #239 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Erin has a recorded origin (Irish); Nessa does not have one recorded yet.
- Erin and Nessa both have 2 syllables.
- A meaning is recorded for Erin; Nessa doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Erin
Popularity journey
First recorded1975
First recorded at #89 among girls in New Zealand in 1975 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New Zealand · Girls
Highest recorded1997–2024
Highest recorded position: #5 among girls in Northern Ireland, in 2009 (recorded 1997–2024).
Northern Ireland · Girls
Most recent2025
Most recently recorded at #71 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls
Nessa
Popularity journey
First recorded1964
First recorded at #300 among girls in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1964–2025
Highest recorded position: #127 among girls in Republic of Ireland, in 1975 (recorded 1964–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #239 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls